3D (3-Dimensional) printing method for preparing long-fiber reinforced metal matrix composite material
A technology of 3D printing and composite materials, which is applied in the field of preparing parts with complex shapes and variable cross-sections, can solve the problems of weaving of complex and variable-section parts, and achieve the effect of improving work efficiency and reducing costs.
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Embodiment 1
[0028] In this embodiment, the method of the present invention is used to make a pulley part of long fiber reinforced metal matrix composite material, and the steps are as follows:
[0029] (1) First establish the 3D CAD model of the pulley such as figure 2 shown;
[0030] (2) Perform layered information processing on the 3D CAD model of the part to obtain the discrete information of the 2D layer;
[0031] (3) According to the two-dimensional layer information of the part obtained in step (2), carry out the design of the 3D printing shape and the three-dimensional weaving path of the fiber;
[0032] (4) According to the layer information of the parts, T300-1k carbon fiber and aluminum alloy are used as forming materials;
[0033] (5) The printing equipment prints a layer of guide columns on the working platform ( image 3 2 shown is the printed guide column);
[0034] (6) The three-dimensional weaving and forming equipment performs three-dimensional weaving of fibers guid...
Embodiment 2
[0039] This embodiment adopts the inventive method to prepare circular parts such as Figure 4 As shown, the difference from Example 1 is that there is no variable cross-section of the parts in this example. In step 4, T300-3k carbon fiber is used. In step 6, the guide column is cylindrical, with a diameter of 1.5mm and a spacing of 1.5mm. The height of each layer is 1mm, and all the others are the same as in Example 1.
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